3D pen



FIG. 1 is a perspective view of a 3D pen showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and

FIG. 8 is second perspective view showing the 3D pen; and,

FIG. 9 is third perspective view showing the 3D pen.

The broken lines in FIGS. 1 to 9 that define the bounds of the claimeddesign form no part thereof.

CLAIM The ornamental design for a 3D pen, as shown and described.